A bolt of lightning strikes across the sky over downtown Houston on Thursday.

A bolt of lightning strikes across the sky over downtown Houston on Thursday.

Photo: Brett Coomer, Chronicle

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Long streaks of lightning make for a spectacular show above the downtown Houston skyline in October 2000 as a storm rolls in. Nationwide, Houston is second only to Florida in the number of people killed each year by lightning strikes.

Long streaks of lightning make for a spectacular show above the downtown Houston skyline in October 2000 as a storm rolls in. Nationwide, Houston is second only to Florida in the number of people killed each